View Full Version : SD Card reader problem with C300


Mark Dobson
January 4th, 2017, 07:20 AM
I've just tried to update the firmware on my Canon C300 and it is not recognising any SD Cards to reformat them to put the new firmware on - the ones I have tried are Sandisk Extreme 20mbs 8GB SDHC and Sandisk Extreme111.

I fear there might be a problem with the actual card reader on the camera which will involve sending it to the Canon Repair Centre.

Anybody else come across this problem? Or could I be using the wrong SD cards?

The 2 CF cards are visible on the initialise media menu but the SD card is not selectable. I've reset all the settings but that had no effect. There is a reset hole on the back of the body above the slot select button , might that help?